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Thread: Welding an aluminum head...

  1. #1
    Senior Member DYNO OPERATOR
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    Welding an aluminum head...

    I was asked the other day about welding an aluminum head. Yes, I know it can be done. But what about the entire deck surface if it has been cut alot. I'm not sure so I thought I would ask the Professionals.

    TS1955

  2. #2
    Yes it can be done I welded a few old 6cyl. Jag heads for restorers. Depending what it is might not be worth the $$ and trouble by the time spent and rehardening etc. if needed.

  3. #3
    Senior Member RACING JUNKIE
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    If you're talking like .050, you can get copper gaskets up to atleast .120 tk, this might be an option welding the entire deck surface wiuld be a lot of trouble and expensive.

    JMO

    Zip.

  4. #4
    Senior Member RACING JUNKIE
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    Quote Originally Posted by zipper06
    If you're talking like .050, you can get copper gaskets up to atleast .120 tk, this might be an option welding the entire deck surface wiuld be a lot of trouble and expensive.

    JMO

    Zip.
    Exactly correct. The Comstic MLS (multi layer steel) gaskets are exactly what you need. Just calculate your volumns and play with gasket thickness to get the CR you want.
    Dave
    http://www.racingjunk.com/profile/343797
    "All that is necessary for the triump of evil is for good men to do nothing" Edmund Burke

  5. #5
    Senior Member RACING JUNKIE
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    We repair aluminum heads all the time, i dont understand what exactly you are asking for?

  6. #6
    Senior Member DYNO OPERATOR
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    Quote Originally Posted by kwkracing
    We repair aluminum heads all the time, i dont understand what exactly you are asking for?
    The question is...Can the deck surface of an aluminum head be welded back up after being cut several times?

    TS1955

  7. #7
    Senior Member DYNO OPERATOR
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    Quote Originally Posted by oldandtired
    Quote Originally Posted by zipper06
    If you're talking like .050, you can get copper gaskets up to atleast .120 tk, this might be an option welding the entire deck surface wiuld be a lot of trouble and expensive.

    JMO

    Zip.
    Exactly correct. The Comstic MLS (multi layer steel) gaskets are exactly what you need. Just calculate your volumns and play with gasket thickness to get the CR you want.
    I know you can use a thicker gasket, but I was just curious if welding that much of a head can be done successfully.

    TS1955

  8. #8
    Senior Member RACING JUNKIE fla1976's Avatar
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    It can be done. Some of the foreign restorers use the method to restore heads that are no longer available. It is a long and expensive process. A lot of manhours to build it up and then it is just milled to the original specs. The cometic gaskets will save you alot of money and will have the same performance. I have used cometic gaskets and they were recommended by an experienced builder that builds alot on nitrous engines. The main thing with them is that the head and block must be milled flat for best results. You can try this site:
    http://www.aluminumheads.com/


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